Avaya CS 1000, Fundamentals

Page: 46 / 270

A critical point is a place that can be difficult for the radio signal to reach, such as a
corner of a room, lifts, and stairwells. Initial critical points are shown in
Figure 16:
Example of initial critical points on page 46 as: P1, P2, P3, P5, P6 and P7.
Figure 16: Example of initial critical points
A specific RSSI value on the handset defines the cell boundary range. Links can be made
outside the cell boundary but the audio quality of the link is poor. The link drops if the handset
and the basestation are too far apart.
As shown in Figure 17: Cell boundary terminology on page 47, the cell boundary is the
farthest point from the cell center where a clear radio signal can be heard.
Determine the range from the cell center to the cell boundary, or the distance to a potential cell
center from a critical point, by using the cell boundary value and the deployment tool.
Important:
Close all doors, and hold the survey handset about 1.2 m above the ground.
Site planning and hardware deployment
46 SIP DECT Fundamentals October 2012
Comments? infodev@avaya.com